Privacy Policy

Last updated: 1 September 2026. This policy covers the Android and web apps published by Mohammad Ashraful Haque Abir ("I", "me") under the developer account Ambiguous Studios, including the apps listed below. If you have questions about any app not listed here, contact me using the details at the bottom of this page.

Shikhao - শিখাও (com.abir.banglashikhi)

Shikhao is a fully offline app for learning to write Bangla letters and digits. It does not request the Android internet permission and cannot send data anywhere, on or off the device.

  • No personal data is collected, stored, or shared. There are no accounts, sign-in, or user profiles.
  • Handwriting you draw is processed entirely on-device by a local machine-learning model and is never saved or transmitted.
  • Your progress (stars earned per lesson) is saved only in local app storage on your device and is deleted if you uninstall the app.
  • The app contains no ads, no analytics, and no third-party SDKs.

Dice Guess (com.abir.diceguess)

Dice Guess is a multiplayer dice-prediction game. It uses the following third-party services:

  • Firebase Authentication — to create your player account (e.g. email or a linked sign-in provider).
  • Firebase Realtime Database — to store your game state, scores, and matchmaking data for local and online multiplayer.
  • Google AdMob — to display ads. AdMob may collect device and advertising identifiers under its own privacy policy: policies.google.com/privacy.

This data is used only to operate the game (accounts, scores, multiplayer, ad-supported free access) and is not sold. You can request deletion of your account data at any time using the contact details below.

Other apps by this developer

Any other app you installed that links to this page follows the same principles: I collect the minimum data needed for the app to function, I do not sell personal data, and any third-party service used (such as Firebase or AdMob) is governed by that provider's own privacy policy in addition to this one.

Children's privacy

Shikhao is designed to be safe for children: it collects no personal data and works entirely offline. I do not knowingly collect personal data from children through any app covered by this policy beyond what is described above.

Changes to this policy

I may update this page as apps change. Material changes will update the "Last updated" date above.

Contact

Questions or data-deletion requests: ashraful.haque@northsouth.edu